Mold-jacket



(No Model.) 2 Sheets-Sheet l.

- D. M. SPRINGER.

l MOLD JACKET.

No. 506,950. Patented Oct. 17,1893.

(No Model.) SheetsSheet 2.

' DQMQSPRINGER.

MOLD JACKET.

No. 506,950. Patented Out. 17, 1893.

. ff @a @fig/ZA i UNITED STATES PATENT OFFICE.

DANIEL M. SPRINGER, OF LITTLE ROCK, ARKANSAS.

MOLD-JACKET.

SPECIFICATION forming part of Letters Patent No. 506,950, dated October1*?, 1893.

Application filed October 26, 1892. Serial No. 450,074. (No model.)

To a/ZZ whom it may concern:

Be it known that I, DANIEL M. SPRINGER, of Little Rock, Arkansas, havemade a new and useful Improvement in Mold-Jackets, of which thefollowing is afull, clear, and exact description. l

The present improvement relates to that class of appliances which areused to sustain the sides, or sides and top, of a mold during thecasting operation.

Hitherto for the purpose in question it has been customary to employ arigid, band-like device made to accurately fitV the mold, and applied byslipping it thereonto, and the top of the mold is confined by means ofan additional part, usually a heavy plate which is laid upon the moldand held in place by reason of its gravity. Such acontrivance, Whileanswering in a measure,'is objectionable; the lower portion, or whateveris employed to bind the mold laterally, is necessarily required to fitthe mold snugly as otherwise the Walls of the mold would not be properlysustained; but when thus made it needs to be carefully manipulated whenbeing applied to avoid injuring or disturbing the mold, and theoperation cannot well be hurried. The top piece also is unsatisfactoryin being heavy to handle and in being a separate piece from the otherpart of the clamping apparatus. i The difficulties mentioned areovercome, and a more desirable means provided for sustaining the mold,by means of the present improved apparatus Which, when fullyvcarriedout, consists mainly in a clamping device adapted to confine the moldboth at the sides and the top thereof, and whose lower portion, which isused to sustain the walls of the mold, is adjustable, enabling it tobeo| uite readily applied to the mold and closely tightened thereupon,and whose upper portion, which takes theplaoe of the weight abovementioned, is connected with the lower portion and thus capable of beingmade much lighter than the heavy plate mentioned, as well as being ameans by which the apparatus can be lifted, all, together with otherfeatures, substantially as is hereinafter set forth and claimed, aidedby the annexed drawings, making part of this specification, in which-Figure l is a plan of the improved mold jacket; Fig. 2 a verticalsection thereof on the line 2 2 of Fig. l; Fig. 3 a vertical section onthe line 3-3 of Fig. l; Figi a vertical section analogous to that ofFig. 2, but showing a modification in respect to the mode ofconstructing and uniting the side and top parts of the jacket; Fig. 5 ahorizontal section on the line 5 5 of Figs. 2 and 8; Fig. 6 a plan ofthe jacket in position upon a mold; Fig. 7 a View illustrating theapplication of the improved jacket to a mold, the jacket having beendropped part way onto the mold but not yet in position to be tightenedthereon, and Fig. 8 a side elevation of the jacket in position upon andclamped to the mold as in use.

The same letters of reference denote the same parts.

A, A, A2, A3, represent the sides of the jacket.

B represents the frame or plate with which the sides in practice areusually connected.

C represents a band employed to clamp the j acket-sides against themold.

The sides A, dac., in size and proportions, conform suitably to thesides,cl, of the mold D, and they are adapted, when pressed or laidagainst the mold-sides, to properly sustain them against the pressureexerted or caused by the metal being cast. To this end the sides may beimperforate, but they preferably' have a series of openings in them,substantially as shown at a, a, to provide outlets through which steamand gas generated in the mold can readily escape. Incidentally theopenings serve an additional purpose. When the sides are clamped againstthe mold the earthy matter of the mold is apt to become more or lesspressed into the openings, and the sides, when clamped, are thus heldmore firmly upon the mold, and more effectually held against anydirectly-upward pull which may be exerted upon them by reason of theirbeing connected with the part B of the jacket. The leading featurehowever of the jacket-sides is their adj ustableness with reference tothe sides of the mold. That is, in applying and withdrawing the jacketfrom the mold, it is desirable for the sides to flare IOO or stand outsuilciently to entirely clear the mold-sides in order that the jacketmay be quite readily dropped into position upon the mold, and then, whenin position on the mold, to be closed and clamped against the moldsides.

What I consider a desirable mode of connecting and supporting thejacket-sides is shown in Figs. 1, 2, 3, 7 and 8. The sides are eachprovided with an outwardly turned flange, al, which by any suitablemeans, such as the rivets 0.2, is attached to the frame B, substantiallyas shown. In this form of connection the riveting is sufficiently looseto permit of the jacket-side to be moved as described, or if rigidlyconnected with the frame B the jacket-side is of such a thickness, shapeor nature, as to permit of its being sprung against the mold-side whenclamped, and to spring therefrom when unclamped.

In the form of connection shown in Fig. Il the jacket-side is madeintegral with the frame B, but the jacket-side is of such thinness ornature as to enable it to be sprung against the mold-side when clampedand to open therefrom when released. As the jacket-sides can thus bevariously connected with whatever constitutes the top portion of thejacket I desire not to be restricted to any particular method. I preferhowever either of the methods just mentioned.

The frame B is in practice somewhat longer and wider than the mold,thereby forming a projecting edge for the jacket-sides to be fastened asdescribed, and also providing means by which the apparatus can be easilylifted. The frame has a suitable opening, b, to provide for pouring themetal into the mold, but the inner portion, b', of the frame extendssuiiiciently inward to cover the peripheral portion of the top of themold, it being sufcient for the purpose under consideration if suchperipheral portion is confined.

The preferable means for closingand holding,r the jacket-side againstthe mold is the band C. It is in shape made to conform substantially tothe moldl and jacket, and it is somewhat larger than the upper portionof the combined jacket-sides, and it is preferably furnished with anoutward turned flange c which serves both to strengthen the band andalso as a convenient means for raising it. When the band is raised, asin Fig. 7, .it does not bind the jacketsides, but when it is depressedit is made to clamp the jacket-sides against the mold as shown in Fig.8. To accomplish this adjustment of the jacket-sides shaped andproportioned in any other equivalent manner to enable the band, whendepressed, to clamppthe jacket-sides against the mold, and to releasethem when the band is raised.

The apparatus may be composed of any suitable material, sheet or castmetal for instance. In operating the apparatus the melder lowers thejacket onto the mold until the jacket-top rests upon the mold; thejacketsides when free are apart sufficiently for the jacket to bereadily placed in position upon the mold, and when the jacket-sides areprovided with flanges, and are hinged or jointed loosely to the topplate B, the operator can cause the jacket-sides to Hare by allowing thejacket to be supported by means of said anges. After the jacket is inposition the operator slips the band C downward into the positionsubstantially shown in Fig. 8 and thereby closes thefjacket-sidesagainst the mold.

I claim- 1. A mold jacket combining in its construction adjustable sidesand a vertically adjustable band for holding said sides against themold.

2. A mold jacket having an upper frame or plate, adjustable sides, and avertically adjustable band, said upper frame being adapted to rest uponthe mold, said sides being connected with said frame, and said clampbeing yadjustable to close and release said sides, substantially asdescribed.

3. The combination of the sides A, A', A2, A3, the top frame or plate Band the vertically adjustable band C, substantially as described.

4. The combination of the adjustable sides having the inclinedprojections, the top plate B and the vertically adjustable band C,substantially as described.

5. A mold jacket combining in its construction the top plate B, theadjustable sides, and the band C, said plate having a central openingand extended at its periphery as described, said sides having theinclined projections, and said band being flanged and being adjustable,substantially as described.

6. A mold jacket having perforated, adjustable sides and a verticallyadjustable band, said sides and said clamp being relatively constructedto enable the band to be moved to close said sides and to release them,substantially as described.

7. A mold jacket combining in its construction the top plate, theperforated, adjustable sides, and a vertically adjustable band, saidsides and said band being relatively constructed to enable the band andsides to be relatively adjusted to close said sides and to release them,substantially as described.

8. A mold jacket having a top plate adapted to bear upon the peripheralportion of the rio top of the mold and perforated to admit of Witness myhand this 21st day of October, the introduction of the metal into themold, 1892. and also having sides connected with said top plate andadapted to open from and close to DANIEL M' SPRINGER' 5 the mold-sides,and a band for confining said Witnesses: Y

jacket sides against said mold` sides, substan- COS ATTENBERY, tially asdescribed. A G. L. SCHAFER.

